RE: how to engrave arrow over notehead?

[Fairchild]

Tucano -

If Han-Wen's suggestion doesn't do what you want, send a graphic.  I'd like
to see if PostScript code will do it.

                    - Bruce

-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of
Han-Wen Nienhuys
Sent: Thursday, July 28, 2005 3:53 AM
To: Bodo
Cc: address@hidden
Subject: Re: how to engrave arrow over notehead?


Bodo wrote:
> Hi,
> Thanks for this awesome program. I'm new to this, so excuse me if this 
> is obvious, but extensive search of the docs and mailing list has not 
> yet come up with anything, so:
> 
> I'm trying to engrave little up- or downwards pointing arrows over 
> noteheads. The reason for this is to indicate tones on the harmonic 
> scale
> (overtones) that cannot be directly mapped onto tones in equal
temperament.
> So if the tone is close to the tempered tone, but a little higher, there
> should be a little arrow pointing upwards over the notehead. Conversely,
if
> the tone is slightly lower than the equal-tempered tone, the arrow over
the
> notehead should point downwards.
> 
> I'm not sure if there is a standard name for this notation, but it has 
> already been used in the Overtone literature. Can this be done in 
> Lilypond? If not, how hard would it be to add a new engraver for a 
> little arrow?
> 
> As a workaround, I could try to put text over the notehead and find a 
> font that contains arrows, but maybe there is a better way?

Hi,

I could add this as a sponsored feature. However, I suspect you can 
already typeset this, you just have to find the Unicode entry for 
arrow-up, and use that , eg.


   arrowUp = #(ly:wide-char->utf-8 #x2347)
   c4^\arrowUp

where 2347 is the codepoint for arrow up.

-- 
  Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen


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